Demopolis, AL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Demopolis, a city in Marengo County, Alabama.
Overnight
64°F
Rain Showers Likely
Rain showers likely. Cloudy, with a low around 64. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Demopolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Rain Showers Likely | 5 mph SE | 72% |
| Wednesday | 79°F | Rain Showers | 0 to 10 mph SW | 78% |
| Wednesday Night | 53°F | Mostly Cloudy | 0 mph | 14% |
| Thursday | 77°F | Mostly Sunny | 0 mph | 4% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 2% |
| Friday | 77°F | Sunny | 0 to 10 mph NW | 2% |
| Friday Night | 44°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 69°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 37°F | Partly Cloudy | 5 mph N | 0% |
| Sunday | 66°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Sunday Night | 36°F | Partly Cloudy then Patchy Frost | 0 to 5 mph N | 2% |
| Monday | 69°F | Sunny | 0 to 5 mph N | 3% |
| Monday Night | 36°F | Mostly Clear then Patchy Frost | 0 mph | 3% |
| Tuesday | 71°F | Sunny | 0 mph | 4% |
Forecast source: National Weather Service (api.weather.gov) for Demopolis (32.500, -87.827). Updated through the day.
Growing snapshot for Demopolis
Last spring frost
Mar 16
First fall frost
Nov 14
Growing season
241 days
Hardiness zone
8b
More local growing data for Demopolis: nearby ZIP 36742 weather · frost dates · planting calendar · Alabama frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Demopolis L&D, Al (8.6 mi from Demopolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.